Strip of lamp-jacks.



PATENTED MAY 1, 1906.

M. SETTER.

STRIP 0P LAMP JAGKS.

APPLICATION TILED JAN. 13, 1905.

UhliGilli; D i if?) MlCHAEL Sli'lillll Application filed Jan'dary 1'3,

Be it liiioWli that i. MICHAEL Sicr'rnia, a citizen oi the l'nited r3: ates oil .nnd a resident of (hit (ooh county, 1 inois,

ll have invented eertain new and useinl lnil proveinen't in Strips of Lanip-Jneks, ol the following is a speeiiieation.

My invention relates to what strip of y of spring-pleas or spring-sock; aeh adapted to miniature iurandesowii laznp s ample. as the lamps rose emu.

Specification of Letters Patent.

purposes in i'eleph fli -ak'i'h analogous purposes.

Generally stat d, the Uh tion is the pro Lion of .tn lied, and highly-eilirient srrip oil A special ohjeet is the provisio: proved construction and arram --juel-:s. Y1 ini- 1 will l ampin? i may be made of sheet metal stamped l pressed into snitahle Torin and wherehy it l will be impossible for Tl heat of the lamps to i u l which the body ol' the strip ol warp the front of ie lamp-jack strip or to distort or injure the; parts oi the sirip of lamp-jacks, as has heretofore often hoppened in lillllll-jiifjh strips having the front and other portions mod of rnliher or similar material. r

it is also an ohjeor, or en irso to rovide certain details and l'iatures of improvement tending to increase the general eilieienry servioeahility of a strip of lamp-jacks oi rn particular eharaeter.

To the i'oregoing and other useful ends my invention consists in matters hereinafter sel, llorth and claimed.

In the aeoonipanying drawings, Figure l is a plan View of a strip of lanip-jaelrs ena'nody ing the principles of my invention, the con-- tral or middle portion thereof being broken away for (UIlVOfllfllUfi oi illustration, it heing: understood that said strip may he of any suitahle length and may involve anv suitahle i or desired number oi lamp-jai'ks lor lamps of any -uitahle character. Fig. 2 is a front view 01' the strip ol' lauip-jaeks shown in Fig 1, it living observed that in neither of these figures ul'o the lamps and light-transniitting xneinlwrs shown. Fig. 3 is a detail perspective of one ol' lhe opp-0r or outer jack-springs.

I hid,

Patented May 1, 1908.

1905. Serial N). 240.965.

Fifi l is a *peetiwof one or" the inner or lower jzur? -;:.rin;1;s. 5 is a derail perspective In hu'ward l i'ner portion of (he lainp ineh seeiion on line 6 o in Fig". l,

is tho; ilostrated my improved strip of iilllp jilCliri comprises a body A, made, preferahly, of sheet metal, stamped or pressed into th desired shape. Qhl/ its front or at its edge, aeeord ng to the position in which :fihe sit-rip is employed, the id no i provided with a hinge or front plate formed integral "h the said hody, At its he said bony prowiih: i with a raised sed-iip porrien n". ends of .r'

nro en with llun ges 11" 81in w f i V e; the bull) oi puns to t:

trips. l nrt-herniore, the lion ol' the lam? adjacent to the front- "irovided it-h )nrtitions a", each ioiineu o; eutun out a rectangular metal v I A portion and bending it upward or outward.

' ,is will hereinnl'ter more fully appear, these partitions separate the incandescent Iain )S i one from other, and thus exclude the ligiit of one from the others, and thereby prevent l'nlse s' As shown, the front plate a is provided rh openings or sockets a, each morning or socket being arranged directly in front of the forward or lower end of one i the miniature incandescent lamps B. l rim'oles or sochets (J are adapted to fit .i'll hin the sold openings if and are each prod unh a ligrht-transmitting ineniher i).

.liv wili lie seen that eaoli thiinhie extends inn'ardly and partially over the bulb or end of tho inoandesernt lamp arranged opposite Lho opening in whieh the thiinlile is inserted. As n means ol ionizing the easy insertion and re- FIiUVlll lot ii ithiinhles (3 eaeh opening (1 is provided Iii is sides with small notches or inili iiliiiiuiis o. adapted to receive lhe ends of a pair ol tweezers or oi her like tool. In this way the end portion of said tool enn he inserted at eaeli side ol' the thinihle and in such manner us to insure the easy removal of tho latter.

A l lat sheet of ll1l)l)('l or other like insula tion id is laid l ntwise upon the upper or outer surl'aee of the hull A and formsn. rest or senting surl'aee for he l wer or inner ji1(li springs i it will he understood tlui-t these liHHl inel -springs l ean he l'orined from a piere of shoot metal, and thus connected in av JD common by a stripf. it is this striptfwhich bears upon and clamps the insulating-sheet E in place. The said lower inner jack- :5 rings are each preferably provided with c ieeks or guards f, which receive the rear end of the incandescent lamp between them, and thereby insure aeeurate insertion of such lamp. A single terminal f, made in gral with the stripf, serves for all of the lower or inner jack-springs. A seeond strip of rubher or like insulation G is then placed upon the top of the strip f. The upper jacksprings ll, each provided with a terminal 11, are then placed upon the strip G and in position above the lower or inner jaelc-springs. A third stri v of rubber or other insulation i is then laid upon the said outer or upper jaoksprings.' The superimposed strips and springs are then all clamped in place. by means of screws J, extending inpwardly or outwardlythrough the body and into a metal olanipii-g sorip in this way the jacksprings are securely and )roperly assembled cl portion a oi the in laee upon the raise ho y and are held in position to receive the lamps. In other words, each pair of pieksprings, consisting of a spring ll and a spring F, is arranged opposite one of the openings a Consequently when current is caused to flow through one of said lamps it, illuminates its allotted light transmitting member l and produees the desired signal. inasmuch as the body is in noway dependentupon anything but metal for its stiffness and rigidity, no part of it ran be warped or distorted by the heat of the lamps. lhe jar-ksprings can be siampeei or pressed out of sheet metal, thus insuring eeouomy of manufacture. This is also true, as previously stated, of the body A of the strip of lampltLCl lS. i

i It. will be understoothof rourseflhat, the lamps are not shown in Fig. 1. A lamp pro ierly adjusted in plane is shown in Fig. 6.

v hat lelaim as my invention is v E. A strip of lamp-jacks having a body made of sheet metal bent, into shape to proviile an integral front late having a plurality of lamp-openin s, an lamps in said jacks.

.2. A stripol amp-jacks comprising a body made of sheet metal bent into shape to proviele a raised base, and also an integral front plate haviny a plurality of lamp-openings, together with a plurality of jack-springs arranged in pairs and suit-ably secured upon said raised portion of the body, anti lamps in said jacks.

3. A. strip of lazily-jacks eornprising a pressed sheet-metal body leaving an upturned integral iront plants provnled with a plurality of opsnings, and having jacksprings arran ed in and suitably mount ed upon said oily, each pair being mounted opposite one of said 0 eniii s, the lower or in nor jack-springs of toe dill erent pairs being formed of a sheet-metal strip stamped an pressed into shape to provide several .03 worthy-extending jerk-springs rennet-ted in eonnnon, and a miniature incandescent electrie lamp removably screws J by whieh both upper and lower jaelesprings are (lumped in place, said metal strip of the lower jack-springs having said serews extending theretlirough, all in eo1nbination, substantially as set forth.

4. A strip of lalnp-jaekseoniprising metal body having an integral upturned tron; plate provided with a plurality of openings, a chamber back of said plate, thimbles removably inserted in said openings, each thirnbls being provided at its outer end with a ligh transmit-ting member, spring-jacks mounted upon said body, and miniature ineanclosoeni lamps inserted in said spring-jacks, the jacks and lamps being in the chamber oaclr oi said, front plate, and the bulb of eachlanip projecting into the inner end portion of one of said ll1llIll)ltS.

5. A st rip of lamp-{mks eornnrisiug a body I made of sleet meta stann e. and pressed into shape to provide an integral frontplats having a plurality of openings, and to provide a lurality of partitions, spring-jacks mounted upon said body, and miniature ineandeseent lamps insertetlin said splin jacks, said lamps being separated from earih other by said )artitions.

a. Astripof lam jacks eomprisingasheetmetal body provit ed with an integral Tent plate having a pluralityof openings, and provided with inte ral iartitions and a lurality of spring-jaelts mounted u on sai body, said openings being arranger. opposite the said springacks, and said partitions alternating with the said aeks.

7 A strip or" lampacks comprising a sheet metal body provided with an integral front plate having a plurality of ope dogs, eseh' opening having notches or indentations al oaeh side thereof, lamps in said looks and thimbles eaeh provided with a light-trans mitting member and aria ted to be inserted in said openings, said noteaes or indentations permitting the insertion of a tool for the purpose of removing said thimbles, and said acks having lower springs provided with side portions adapt-ed to cor) orats with the said thimbles in preventing llatersl displaeernsnt, or" the lamps.

8. .A strip of lamp-jaelts eornprising asheot." metal body ha r in integral iront, plats WOVldQ-d with a p nrality of upon." having; integral lugs or at its "dB, to "other with s ocly and one arran erl opposite one orsairl openings, said jacks saving upper and low springs arranged in upper and lower rows tending substantially from one log "to the other.

held in eaeh jack, together with an upper clamping-strip la and I ring-jael s mounted upon said 9. A strip of lamp-jacks comprising a suitable support, a plurality. of lower or inner jack-s rings connected in common b an integra strip of metal, upper or outer ack- 5 springs each arranged to cooperate with one of said inner or lower jack-sprin s, each upper or outer jack-spring provided with a terminal, and the lower or inner jack-springs provided with a terminal which is integral 10 with said metal strip, all of which jacksprings have their free ends pointing toward at e front of the structure, and all of said terminals projecting rearwardly, a strip of insu tion interposed between the said metal 15 sitri and thesaid upperor outerjack-springs,

ah a miniature incandescent electric lam reinovably held in each jack, together wit an upper clamping-strip K and screws J by which both upper and lower jack-s )rings are clamped in place,'said metal stripo the lower ack-springs havlng said screws extending .therethrough, all in combination, substantially as set forth.

10. Astri of lamp-jacks comprising lower or inner jac -springs each provided with a pair of cheeks or guards, and upper or outer ack-s rings each arranged to cooperate with one 0 said lower or inner jack-springs, together with means for securing said springs in lace.

igned by me at Chicago, Cook county, Illinois, this 9th day of January, 1905.

MICHAEL SElTEB. Witnesses:

W. LEE CAMPBELL, R. O. Grrrloan. 

